CN203893581U - Pre-refrigeration agent compression skid-mounted module for liquefied natural gas - Google Patents
Pre-refrigeration agent compression skid-mounted module for liquefied natural gas Download PDFInfo
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- CN203893581U CN203893581U CN201420310642.7U CN201420310642U CN203893581U CN 203893581 U CN203893581 U CN 203893581U CN 201420310642 U CN201420310642 U CN 201420310642U CN 203893581 U CN203893581 U CN 203893581U
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- lubricating oil
- compressor
- refrigerant
- skid
- heat exchanger
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Abstract
The utility model discloses a pre-refrigeration agent compression skid-mounted module for liquefied natural gas. The module comprises a skid-mounted frame, a pre-refrigeration agent compressor integrated with the skid-mounted frame, a compressor lubricating system, a lubricating oil cooling heat exchanger, a pre-refrigeration agent filter, a compressor lubricating oil fine separator and a pre-refrigeration agent storage tank. The skid-mounted module is compact in structure and high in space utilization rate, a pipeline is shortened, flow resistance is reduced, and the energy utilization rate is increased.
Description
Technical field
The utility model relates to a kind of pre-refrigerant compression skid module, for the liquefying plant that natural gas is liquefied.
Background technology
Liquefied natural gas is to utilize liquefying plant that the natural gas of gaseous state is liquefied after precooling and deep cooling to form.Current precooling is general adopts pre-cold-producing medium to carry out precooling, conventional pre-cold-producing medium supply system comprises pre-coolant compressor, filter and storage tank, and these parts are all that the surrounding of the discrete precooling module that is distributed in liquefying plant provides liquid pre-cold-producing medium for it.Right this dispersed structure exists not enough: 1. structure is disperseed, difficult reasonable Arrangement and installation; 2. pipeline connects length, and flow path resistance increases, and heat leak is difficult to be controlled.Pre-coolant compressor works long hours in addition, and the oil temperature of lubricating oil height very, has reduced lubricant effect.
Utility model content
Technical problem to be solved in the utility model is: the pre-refrigerant compression skid module that a kind of liquefied natural gas is provided, this skid module is integrated in the lubricating system unification of parts required pre-refrigerant compression and pre-coolant compressor on a skid framework, and utilize the cold of the pre-cold-producing medium after compression to come to lower the temperature to lubricating oil, enable to be fully used, this skid modular structure compactness, space availability ratio are high, shorten duct length, reduce flow process resistance, increase energy utilization rate.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of pre-refrigerant compression skid module of liquefied natural gas, comprise skid framework, with the pre-coolant compressor being integrated on described skid framework, compressor lubrication system, lubricating oil cooling heat exchanger, prefabricated refrigerant filter, compressor lubricant oil fine separator and pre-cold-producing medium storage tank, described pre-coolant compressor is provided with pre-refrigerant inlet, pre-refrigerant outlet, lubricating oil inlet and lubricating oil outlet, described lubricating oil cooling heat exchanger comprises pre-refrigerant inlet, pre-refrigerant outlet, lubricating oil inlet and lubricating oil outlet, the pre-refrigerant inlet of described pre-coolant compressor is for being communicated with the pre-refrigerant reflux tube of precooling skid module, the pre-refrigerant outlet of described pre-coolant compressor is communicated with the pre-refrigerant inlet of lubricating oil cooling heat exchanger, the lubricating oil inlet of described pre-coolant compressor and lubricating oil outlet are communicated with the lubricating oil inlet of compressor lubrication system and lubricating oil cooling heat exchanger respectively, the lubricating oil outlet of described lubricating oil cooling heat exchanger is communicated with compressor lubricant oil fine separator, the pre-refrigerant outlet of described lubricating oil cooling heat exchanger is communicated with the entrance of pre-cold-producing medium storage tank by prefabricated refrigerant filter, the outlet of this pre-cold-producing medium storage tank is for being communicated with the pre-cold-producing medium supply pipe of precooling skid module, described compressor lubricant oil fine separator is communicated with compressor lubrication system.
As the preferred scheme of one, described skid framework is rectangular-shaped, skid framework comprises eight intermediate connecting rods between bottom framework, top frame and connection top frame and bottom framework, these eight intermediate connecting rods are equidistantly distributed on the both sides of bottom framework, top frame, and this intermediate connecting rod is divided into skid framework the first installation region, the second installation region and the 3rd installation region along its length in turn.
As the preferred scheme of one, described pre-coolant compressor, compressor lubrication system, lubricating oil cooling heat exchanger are installed in the first installation region, described compressor lubricant oil fine separator and prefabricated refrigerant filter are installed on the second installation region, and described pre-cold-producing medium storage tank is installed in the 3rd installation region.
As the preferred scheme of one, the middle part of described pre-coolant compressor in the first installation region, described compressor lubrication system, lubricating oil cooling heat exchanger lay respectively at the both sides of pre-coolant compressor, described compressor lubricant oil fine separator and lubricating oil are lowered the temperature heat exchanger in the same side, the middle part of described prefabricated refrigerant filter in the second installation region.
As the preferred scheme of one, described pre-cold-producing medium is amine or propane.
Adopt after technique scheme, effect of the present utility model is: 1. this skid module is integrated in pre-coolant compressor, compressor lubrication system, lubricating oil cooling heat exchanger, prefabricated refrigerant filter, compressor lubricant oil fine separator and pre-cold-producing medium storage tank in a skid framework, can conveniently transport and move, space availability ratio improves, shorten duct length, reduce flow process resistance; 2. this skid module utilizes lubricating oil cooling heat exchanger that the pre-cold-producing medium after compression is carried out to heat exchange to the higher lubricating oil of temperature after lubricated, the temperature of lubricating oil is reduced, then the lubricating oil of low temperature is through compressor lubrication system circulating lubricating, the utilization rate of cold is improved, ensure the long-term normal work of compressor.
Again because described skid framework is rectangular-shaped, skid framework comprises eight intermediate connecting rods between bottom framework, top frame and connection top frame and bottom framework, these eight intermediate connecting rods are equidistantly distributed on the both sides of bottom framework, top frame, this intermediate connecting rod is divided into skid framework the first installation region, the second installation region and the 3rd installation region along its length in turn, like this, this skid framework facilitates Container Transport, also be convenient to each parts subregion burst simultaneously and install, the installation site that makes each parts more rationally, orderliness more.
Again because described pre-coolant compressor, compressor lubrication system, lubricating oil cooling heat exchanger are installed in the first installation region, described compressor lubricant oil fine separator and prefabricated refrigerant filter are installed on the second installation region, described pre-cold-producing medium storage tank is installed in the 3rd installation region, like this, whole skid module reasonable stress, and the parts that pre-coolant compressor is lubricated concentrate in together, and facilitate stringing, shorten length of pipeline.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the three-dimensional structure diagram of the utility model embodiment;
In accompanying drawing: 1. top frame; 2. bottom framework; 3. connecting rod; 4. pre-cold-producing medium storage tank; 5. compressor lubricant oil fine separator; 6. lubricating oil cooling heat exchanger; 7. pre-coolant compressor; 8. compressor lubrication system.
Detailed description of the invention
Below by specific embodiment, the utility model is described in further detail.
As shown in Figure 1, a pre-refrigerant compression skid module for liquefied natural gas, comprises skid framework and is integrated in pre-coolant compressor 7, compressor lubrication system 8, lubricating oil cooling heat exchanger 6, prefabricated refrigerant filter, compressor lubricant oil fine separator 5 and the pre-cold-producing medium storage tank 4 on described skid framework.
Described skid framework is rectangular-shaped, this skid framework comprises bottom framework 2, top frame 1 and connects eight intermediate connecting rods 3 between top frame 1 and bottom framework 2, bottom framework 2, top frame 1 and connecting rod 3 are welded to each other fixing, these eight intermediate connecting rods 3 are equidistantly distributed on the both sides of bottom framework 2, top frame 1, and this intermediate connecting rod 3 is divided into skid framework the first installation region, the second installation region and the 3rd installation region along its length in turn.Side described in the utility model is finger widths both sides, on length direction, be two ends, that is to say that the first installation region and the 3rd installation region are the two ends that are arranged on skid framework, the second installation region is arranged on middle part, and the position that marks 1 and 2 indications in Fig. 1 is the both sides of skid framework.
Wherein, described pre-coolant compressor 7, compressor lubrication system 8, lubricating oil cooling heat exchanger 6 are installed in the first installation region, described compressor lubricant oil fine separator 5 and prefabricated refrigerant filter are installed on the second installation region, and described pre-cold-producing medium storage tank 4 is installed in the 3rd installation region.The middle part of described pre-coolant compressor 7 in the first installation region, described compressor lubrication system 8, lubricating oil cooling heat exchanger 6 lay respectively at the both sides of pre-coolant compressor 7, described compressor lubricant oil fine separator 5 is lowered the temperature heat exchanger 6 in the same side, the middle part of described prefabricated refrigerant filter in the second installation region with lubricating oil.Like this, this skid module whole is accepted more even, the vibrations that produce can to a certain degree reduce compressor operating time, and the compressor lubrication system 8 relevant to compressor lubrication, lubricating oil cooling heat exchanger 6 is installed on the first installation region, reduce duct length, make stringing more concentrated, reduce flow process resistance.And compressor lubricant oil fine separator 5 is lowered the temperature heat exchanger 6 in the same side with lubricating oil, facilitate lubricating pipe docking.
Described pre-coolant compressor 7 is provided with pre-refrigerant inlet, pre-refrigerant outlet, lubricating oil inlet and lubricating oil outlet, and this pre-cold-producing medium is amine or propane.The effect of this pre-coolant compressor 7 be by precooling module reflux the pre-cold-producing medium after natural gas precooling is compressed to cooling, can recycle.The pre-refrigerant inlet of described pre-coolant compressor 7 is for being communicated with the pre-refrigerant reflux tube of precooling skid module, the pre-refrigerant outlet of described pre-coolant compressor 7 is communicated with the pre-refrigerant inlet of lubricating oil cooling heat exchanger 6, the lubricating oil inlet of described pre-coolant compressor 7 and lubricating oil outlet are communicated with the lubricating oil inlet of compressor lubrication system 8 and lubricating oil cooling heat exchanger 6 respectively
Described lubricating oil cooling heat exchanger 6 comprises pre-refrigerant inlet, pre-refrigerant outlet, lubricating oil inlet and lubricating oil outlet, the effect of this lubricating oil cooling heat exchanger 6 is that lubricating oil is lowered the temperature, pre-coolant compressor 7 needs to lubricate in long-term use procedure, circulation lubricating oil to compressor lubrication after oil temperature, need the use of cooling guarantee air compressor machine long-term stability, this lubricating oil cooling heat exchanger 6 utilizes liquid pre-cold-producing medium and lubricating oil after compression to carry out heat exchange, thereby reaches the object of lubricating oil cooling.The lubricating oil outlet of described lubricating oil cooling heat exchanger 6 is communicated with compressor lubricant oil fine separator 5, the lubricating oil inlet of described lubricating oil cooling heat exchanger 6 is communicated with the lubricating oil outlet of pre-coolant compressor 7, the pre-refrigerant inlet of described lubricating oil cooling heat exchanger 6 is communicated with the pre-refrigerant outlet of pre-coolant compressor 7, the pre-refrigerant outlet of described lubricating oil cooling heat exchanger 6 is communicated with the entrance of pre-cold-producing medium storage tank 4 by prefabricated refrigerant filter, this prefabricated refrigerant filter can filter out the impurity in pre-cold-producing medium, guarantees that it meets precooling requirement.
Acting as of described compressor lubricant oil fine separator 5: compressor is in Compressed Gas, a large amount of oil is injected into the between cog volume of compressor, the gas mixture that these oil and compressed gas form, after the identical compression process of experience, be discharged to the compressor lubricant oil fine separator of unit.Compressor lubricant oil fine separator is one of capital equipment in Compressor Group system.In order to reduce the oil content in unit exhaust and to recycle the lubricating oil in unit, must utilize gs-oil separator that lubricating oil is separated effectively from gas, described compressor lubricant oil fine separator 5 is communicated with compressor lubrication system 8.Compressor lubrication system 8 is for providing lubricating oil by compressor.
These pre-cold-producing medium storage tank 4 outlets are for being communicated with the pre-cold-producing medium supply pipe of precooling skid module, and this pre-cold-producing medium storage tank 4 can be kept in the pre-cold-producing medium of liquid state, and provide pre-cold-producing medium for the precooling technique of precooling skid module.
This skid module is integrated in the lubricating system unification of parts required pre-refrigerant compression and pre-coolant compressor 7 on a skid framework, and utilize the cold of the pre-cold-producing medium after compression to come to lower the temperature to lubricating oil, enable to be fully used, this skid modular structure compactness, space availability ratio are high, shorten duct length, reduce flow process resistance, increase energy utilization rate.
Claims (5)
1. the pre-refrigerant compression skid module of a liquefied natural gas, it is characterized in that: comprise skid framework, with the pre-coolant compressor being integrated on described skid framework, compressor lubrication system, lubricating oil cooling heat exchanger, prefabricated refrigerant filter, compressor lubricant oil fine separator and pre-cold-producing medium storage tank, described pre-coolant compressor is provided with pre-refrigerant inlet, pre-refrigerant outlet, lubricating oil inlet and lubricating oil outlet, described lubricating oil cooling heat exchanger comprises pre-refrigerant inlet, pre-refrigerant outlet, lubricating oil inlet and lubricating oil outlet, the pre-refrigerant inlet of described pre-coolant compressor is for being communicated with the pre-refrigerant reflux tube of precooling skid module, the pre-refrigerant outlet of described pre-coolant compressor is communicated with the pre-refrigerant inlet of lubricating oil cooling heat exchanger, the lubricating oil inlet of described pre-coolant compressor and lubricating oil outlet are communicated with the lubricating oil inlet of compressor lubrication system and lubricating oil cooling heat exchanger respectively, the lubricating oil outlet of described lubricating oil cooling heat exchanger is communicated with compressor lubricant oil fine separator, the pre-refrigerant outlet of described lubricating oil cooling heat exchanger is communicated with the entrance of pre-cold-producing medium storage tank by prefabricated refrigerant filter, the outlet of this pre-cold-producing medium storage tank is for being communicated with the pre-cold-producing medium supply pipe of precooling skid module, described compressor lubricant oil fine separator is communicated with compressor lubrication system.
2. the pre-refrigerant compression skid module of a kind of liquefied natural gas as claimed in claim 1, it is characterized in that: described skid framework is rectangular-shaped, skid framework comprises eight intermediate connecting rods between bottom framework, top frame and connection top frame and bottom framework, these eight intermediate connecting rods are equidistantly distributed on the both sides of bottom framework, top frame, and this intermediate connecting rod is divided into skid framework the first installation region, the second installation region and the 3rd installation region along its length in turn.
3. the pre-refrigerant compression skid module of a kind of liquefied natural gas as claimed in claim 2, it is characterized in that: described pre-coolant compressor, compressor lubrication system, lubricating oil cooling heat exchanger are installed in the first installation region, described compressor lubricant oil fine separator and prefabricated refrigerant filter are installed on the second installation region, and described pre-cold-producing medium storage tank is installed in the 3rd installation region.
4. the pre-refrigerant compression skid module of a kind of liquefied natural gas as claimed in claim 3, it is characterized in that: the middle part of described pre-coolant compressor in the first installation region, described compressor lubrication system, lubricating oil cooling heat exchanger lay respectively at the both sides of pre-coolant compressor, described compressor lubricant oil fine separator and lubricating oil are lowered the temperature heat exchanger in the same side, the middle part of described prefabricated refrigerant filter in the second installation region.
5. the pre-refrigerant compression skid module of a kind of liquefied natural gas as claimed in claim 4, is characterized in that: described pre-cold-producing medium is amine or propane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310642.7U CN203893581U (en) | 2014-04-15 | 2014-06-12 | Pre-refrigeration agent compression skid-mounted module for liquefied natural gas |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181251.X | 2014-04-15 | ||
| CN201420181251 | 2014-04-15 | ||
| CN201420310642.7U CN203893581U (en) | 2014-04-15 | 2014-06-12 | Pre-refrigeration agent compression skid-mounted module for liquefied natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893581U true CN203893581U (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420310642.7U Withdrawn - After Issue CN203893581U (en) | 2014-04-15 | 2014-06-12 | Pre-refrigeration agent compression skid-mounted module for liquefied natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203893581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006626A (en) * | 2014-04-15 | 2014-08-27 | 张家港富瑞特种装备股份有限公司 | Pre-refrigerating fluid compression skid-mounted module of liquefied natural gas |
-
2014
- 2014-06-12 CN CN201420310642.7U patent/CN203893581U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006626A (en) * | 2014-04-15 | 2014-08-27 | 张家港富瑞特种装备股份有限公司 | Pre-refrigerating fluid compression skid-mounted module of liquefied natural gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |